The objective of the study was to evaluate oxidative stress (OS) status in subjects with different cardiovascular risk factors. With this in mind, we have studied three models of high cardiovascular risk: hypertension (HT) with and without metabolic syndrome, familial hypercholesterolemia (FH) and familial combined hyperlipidemia (FCH) with and without insulin resistance. Oxidative stress marke...

Hypertension is a serious problem that is recently thought to be associated with damaging effects on target organs partially via oxidative stress. On the other hand, there is accumulating literature describing some sort of therapeutic interaction between antioxidant enzymes in vital organs and hypertension. Therefore, the aim of this study is to investigate the possible effect of a direct renin...

Background Oxidant injury to the pulmonary endothelium contributes to acute lung injury. We have shown that activation of PKGI by cGMP increases protein levels of the antioxidant enzymes catalase and glutathione peroxidase-1 (GPx-1) and ameliorates oxidant injury in mouse lung endothelium [1]. Catalase and GPx-1 mRNA was not increased. The pathway downstream of PKGI that leads to increases in c...

objectives: liver is one of the most sensitive tissues to oxidant damage. hence, the present study was conducted to compare the effects of melissa officinalis (mo) extract and atorvastatin on the activity of liver enzymes in rats. materials and methods: in this experimental study, 60 male wistar rats were selected and allocated to six groups (n=10). the control group received a normal diet, sha...

The extensive existing knowledge on bi-directional communication between astrocytes and neurons led us to hypothesize that not only ischemia-preconditioned (IP) astrocytes can protect neurons but also IP neurons protect astrocytes from lethal ischemic injury. Here, we demonstrated for the first time that neurons have a significant role in protecting astrocytes from ischemic injury. The cultured...

Objective: Iron is an element, which found in the structure of antioxidant enzymes and has important role inactivation reactive oxygen species. Disruption oxidant-antioxidant balance may be playing a pathogenesis iron deficiency anemia (IDA). Dynamic thiol-disulfide homeostasis (DTDH) serum ischemia-modified albumin (IMA) levels are indicators pro-oxidant/antioxidant status. In this study, we a...

Lung injury is one of the major concerns for chest cancer patients that undergo radiotherapy as well as persons exposed to an accidental radiological event. Reduction/oxidation (redox) system plays a key role in lung injury via chronic upregulation of pro-oxidant enzymes. NOX2 and NOX4 are two important reactive oxygen species generating enzymes that are involved in radiation toxicity in some o...

Cyclophosphamide is a chemotherapy drug for the treatment of cancer. Chicken embryo amniotic fluid, vitamin C and coenzyme Q10 have anti-oxidant properties. Total of 70 adult female mice were selected and divided into seven groups. The first group that received 2 ml kg-1 of inactivated amniotic fluid subcutaneously. The second group treated with 75 mg kg-1of cyclophosphami...

Hypochlorous acid (HOCl) is toxic and causes cell death. However, this effect is inhibited by reaction with taurine, which generates taurine chloramine (TauCl), thereby protecting the cells from HOCl-generated toxicity. TauCl has been shown to inhibit the production of inflammatory mediators like O(2) (*-), H(2)O(2) and NO. In this study, RAW 264.7 macrophages treated with TauCl were protected ...